What is the difference between new() and malloc()?

1.	What is the difference between new() and malloc()?
Answer» In C++, both malloc() and new are used for memory ALLOCATION at runtime. The differences are listed below: Malloc() is a function, whereas new() is a pre-processor. When using new(), there is no requirement to allocate memory; nevertheless, when using malloc(), you must use sizeof (). new() SETS the new memory to 0 and malloc() assigns a RANDOM value to the newly allocated memory. The new() OPERATOR ALLOCATES memory and invokes the constructor for object initialization, whereas the malloc() function allocates memory but does not invoke the constructor. Because the operator is faster than the function, the new() operator is faster than the malloc() function.

Answer»

In C++, both malloc() and new are used for memory ALLOCATION at runtime. The differences are listed below:

Malloc() is a function, whereas new() is a pre-processor.
When using new(), there is no requirement to allocate memory; nevertheless, when using malloc(), you must use sizeof ().
new() SETS the new memory to 0 and malloc() assigns a RANDOM value to the newly allocated memory.
The new() OPERATOR ALLOCATES memory and invokes the constructor for object initialization, whereas the malloc() function allocates memory but does not invoke the constructor.
Because the operator is faster than the function, the new() operator is faster than the malloc() function.

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